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Zhang K, Bai Y, Feng C, Ning G, Ni H, Yu W, Zhao K, Wang B, Hu P. Synthesis and characterization of new H-shaped triphenylene discotic room-temperature liquid crystal tetramers by a copper-free click reaction. NEW J CHEM 2018. [DOI: 10.1039/c7nj02695a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of new H-shaped triphenylene discotic liquid crystal tetramers has been designed and synthesized using a copper-free [3+2] cycloaddition reaction.
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Affiliation(s)
- Kan Zhang
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Yuefeng Bai
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Chun Feng
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Guanghui Ning
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Hailiang Ni
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Wenhao Yu
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Keqing Zhao
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Biqin Wang
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
| | - Ping Hu
- College of Chemistry and Materials Science
- Sichuan Normal University
- Chengdu
- P. R. China
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Lepri S, Buonerba F, Goracci L, Velilla I, Ruzziconi R, Schindler BD, Seo SM, Kaatz GW, Cruciani G. Indole Based Weapons to Fight Antibiotic Resistance: A Structure-Activity Relationship Study. J Med Chem 2016; 59:867-91. [PMID: 26757340 DOI: 10.1021/acs.jmedchem.5b01219] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Antibiotic resistance represents a worldwide concern, especially regarding the outbreak of methicillin-resistant Staphylococcus aureus, a common cause for serious skin and soft tissues infections. A major contributor to Staphylococcus aureus antibiotic resistance is the NorA efflux pump, which is able to extrude selected antibacterial drugs and biocides from the membrane, lowering their effective concentrations. Thus, the inhibition of NorA represents a promising and challenging strategy that would allow recycling of substrate antimicrobial agents. Among NorA inhibitors, the indole scaffold proved particularly effective and suitable for further optimization. In this study, some unexplored modifications on the indole scaffold are proposed. In particular, for the first time, substitutions at the C5 and N1 positions have been designed to give 48 compounds, which were synthesized and tested against norA-overexpressing S. aureus. Among them, 4 compounds have NorA IC50 values lower than 5.0 μM proving to be good efflux pump inhibitor (EPI) candidates. In addition, preliminary data on their ADME (absorption, distribution, metabolism, and excretion) profile is reported.
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Affiliation(s)
- Susan Lepri
- Department of Chemistry, Biology and Biotechnology, University of Perugia , 06123 Perugia, Italy
| | - Federica Buonerba
- Department of Chemistry, Biology and Biotechnology, University of Perugia , 06123 Perugia, Italy
| | - Laura Goracci
- Department of Chemistry, Biology and Biotechnology, University of Perugia , 06123 Perugia, Italy
| | - Irene Velilla
- Department of Chemistry, Biology and Biotechnology, University of Perugia , 06123 Perugia, Italy
| | - Renzo Ruzziconi
- Department of Chemistry, Biology and Biotechnology, University of Perugia , 06123 Perugia, Italy
| | - Bryan D Schindler
- The John D. Dingell Department of Veterans Affairs Medical Center , Detroit, Michigan 48201, United States
| | - Susan M Seo
- The John D. Dingell Department of Veterans Affairs Medical Center , Detroit, Michigan 48201, United States
| | - Glenn W Kaatz
- The John D. Dingell Department of Veterans Affairs Medical Center , Detroit, Michigan 48201, United States.,Department of Internal Medicine, Division of Infectious Diseases, Wayne State University School of Medicine , Detroit, Michigan 48201, United States
| | - Gabriele Cruciani
- Department of Chemistry, Biology and Biotechnology, University of Perugia , 06123 Perugia, Italy
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Pujol AR, Bataillé S, Gourdon A. Functional Molecules for Grafting onto Ionic Surfaces. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501077] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Schubert M, Trosien S, Schulz L, Brandscheid C, Schollmeyer D, Waldvogel SR. Oxidative (Cross-)Coupling Reactions Mediated by C-H Activation of Thiophene Derivatives by Using Molybdenum(V) Reagents. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403188] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Wehming K, Schubert M, Schnakenburg G, Waldvogel SR. Oxidative Cyclization Reaction of 2-Aryl-Substituted Cinnamates To Form Phenanthrene Carboxylates by Using MoCl5. Chemistry 2014; 20:12463-9. [DOI: 10.1002/chem.201403442] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Indexed: 12/12/2022]
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Belskaya N, Subbotina J, Lesogorova S. Synthesis of 2H-1,2,3-Triazoles. TOPICS IN HETEROCYCLIC CHEMISTRY 2014. [DOI: 10.1007/7081_2014_125] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Trosien S, Böttger P, Waldvogel SR. Versatile Oxidative Approach to Carbazoles and Related Compounds Using MoCl5. Org Lett 2013; 16:402-5. [DOI: 10.1021/ol403304t] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Simon Trosien
- Institute of Organic Chemistry, Duesbergweg 10-14, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Philipp Böttger
- Institute of Organic Chemistry, Duesbergweg 10-14, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
| | - Siegfried R. Waldvogel
- Institute of Organic Chemistry, Duesbergweg 10-14, Johannes Gutenberg University Mainz, 55128 Mainz, Germany
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Lohoelter C, Weckbecker M, Waldvogel SR. (-)-Isosteviol as a Versatile Ex-Chiral-Pool Building Block for Organic Chemistry. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300447] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Trosien S, Waldvogel SR. Synthesis of Highly Functionalized 9,10-Phenanthrenequinones by Oxidative Coupling Using MoCl5. Org Lett 2012; 14:2976-9. [DOI: 10.1021/ol300948u] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Simon Trosien
- Institute of Organic Chemistry, Duesbergweg 10-14, Johannes Gutenberg-University Mainz, 55128 Mainz, Germany
| | - Siegfried R. Waldvogel
- Institute of Organic Chemistry, Duesbergweg 10-14, Johannes Gutenberg-University Mainz, 55128 Mainz, Germany
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Waldvogel SR, Trosien S. Oxidative transformation of aryls using molybdenum pentachloride. Chem Commun (Camb) 2012; 48:9109-19. [DOI: 10.1039/c2cc33925k] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Danz M, Tonner R, Hilt G. Understanding the regioselectivity in Scholl reactions for the synthesis of oligoarenes. Chem Commun (Camb) 2011; 48:377-9. [PMID: 22083090 DOI: 10.1039/c1cc15980a] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A short reaction sequence leads to oligoarene derivatives utilising a regioselective Scholl reaction for the unprecedented cyclisation to the mono-functionalised oligoarene under methanol elimination. Quantum-chemical investigations reveal the reason for the remarkably high regioselectivity.
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Affiliation(s)
- Michael Danz
- Fachbereich Chemie, Hans-Meerwein-Str., 35043 Marburg, Germany
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Hackelöer K, Schnakenburg G, Waldvogel SR. Oxidative Coupling Reactions of 1,3-Diarylpropene Derivatives to Dibenzo[a,c]cycloheptenes by PIFA. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100918] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hackeloer K, Schnakenburg G, Waldvogel SR. Novel Domino Oxidative Coupling: C−C Bond Formation Sequence to Highly Functionalized Dibenzo[a,c]cycloheptenes. Org Lett 2011; 13:916-9. [DOI: 10.1021/ol102969k] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kristina Hackeloer
- Kekulé Institute for Organic Chemistry and Biochemistry, Bonn University, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany, X-ray Analysis Department, Institute for Inorganic Chemistry, Bonn University, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany, and Institute for Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Gregor Schnakenburg
- Kekulé Institute for Organic Chemistry and Biochemistry, Bonn University, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany, X-ray Analysis Department, Institute for Inorganic Chemistry, Bonn University, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany, and Institute for Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Siegfried R. Waldvogel
- Kekulé Institute for Organic Chemistry and Biochemistry, Bonn University, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany, X-ray Analysis Department, Institute for Inorganic Chemistry, Bonn University, Gerhard-Domagk-Strasse 1, 53121 Bonn, Germany, and Institute for Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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